The kids have been sleeping in the same room for a few months now.  Joey has a bunk bed, but we pull out the trundle bed fir Izzy to sleep on.  Funny thing is, we leave a couple of feet between her bed and the bunk bed.  If she is not fully asleep when we put her down, we come back to find that she has pushed the (pretty heavy) trundle right up to the bunk bed so that she can be closer to her big brother.